## Abstract The synthesis of tritium labelled nitroaryldihydropyridines was achieved by dehalogenation of a brominated precursor using the palladium hydroxide on charcoal as catalyst. The investigations described show the example [^3^H]nimodipine which was prepared with a specific activity of 16,4
Tritium labelling of psychopharmacologic agents
✍ Scribed by Ouri Buchman; Michael Shimoni
- Publisher
- John Wiley and Sons
- Year
- 1982
- Tongue
- French
- Weight
- 362 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0022-2135
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✦ Synopsis
Abstract
Attempts to reach phenothiazine derivatives labelled with tritium at high specific activity, are described. All the syntheses are based on catalysed dehalogenation procedures. The most encouraging results are those obtained by halogenation of the desired compound followed by catalytic dehalogenation with Pd/C. The specific activities are in the range of 10,000‐40,000 mCi/mmol.
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